package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
//import jdk.nashorn.internal.ir.annotations.Ignore;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录功能
     *
     * @param employee
     * @param request
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(@RequestBody Employee employee, HttpServletRequest request) {
        //将页面提交的密码password进行md5加密处理,得到加密后的字符串
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        //根据页面提交的用域名username查询数据库中员工数据信息
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername, employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);
        //如果没有查询到,则返回登录失败
        if (emp == null) {
            return R.error("登录失败");
        }
        //进行密码比对,如果不一致,则返回登录失败的结果
        if (!password.equals(emp.getPassword())) {
            return R.error("登录失败");
        }
        //查看员工状态,如果为已禁用的状态,则返回员工已禁用结果
        if (emp.getStatus() == 0) {
            return R.error("没有访问的权限");
        }
        //登录成功,将员工的id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);
    }

    /**
     * 员工退出
     *
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request) {
        //清理Session中共当前登录员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    /**
     * 新增员工
     * @param employee
     * @return
     */
    @PostMapping
    public R<String> save( @RequestBody Employee employee) {
        log.info("新增员工，员工信息：{}", employee.toString());
        //设置初始密码为123456,需要进行md5加密处理
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
        employeeService.save(employee);
        return R.success("新增员工成功");
    }

    /**
     * 员工信息分页
     *
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        log.info("page = {},pageSize = {},name = {}", page, pageSize, name);
        //构造分页构造器
        Page pageInfo = new Page(page, pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
        //添加过滤条件
        queryWrapper.like(StringUtils.isNotEmpty(name), Employee::getName, name);
        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);

        //执行查询
        employeeService.page(pageInfo, queryWrapper);
        return R.success(pageInfo);


    }

    /**
     * 启用/禁用员工账号
     *
     * @param request
     * @param employee
     * @return
     */
    @PutMapping
    public R<String> update(HttpServletRequest request, @RequestBody Employee employee) {
        employee.setUpdateTime(LocalDateTime.now());
        employeeService.updateById(employee);
        //employeeService.update(employee,null);  实现全部启用  全部禁用的功能
        return R.success("员工修改信息成功");
    }

    /**
     * 根据id查询
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable long id){
        log.info("根据id查询员工信息...");
        Employee employee = employeeService.getById(id);
        if (employee != null) {
            return  R.success(employee);
        }
        return R.error("id不存在");

      /*  Long empId = (Long) request.getSession().getAttribute("employee");
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getId,empId);
        Employee employee = employeeService.getOne(queryWrapper);
        return R.success(employee);*/
    }




    }



